Police investigate slaying of on-duty officer

Investigators have no suspects

Wisconsin authorities are looking into the death of a suburban Milwaukee police officer who was killed on duty.

Wauwatosa Lt. Gerald Witkowski said dispatchers unsuccessfully tried to reach 30-year-old Jennifer Lynn Sebena for a call about 3 a.m. Monday. He said officers started looking for her and found her dead with several gunshot wounds about 5 a.m. He didn't know if she was found inside or outside of her car.

Witkowski said the case is considered a homicide. Officers have no suspects.

Witkowski said Sebena enrolled in the police academy in January 2011 and began working solo in July. He said she was married and described her as a great person and officer.

Police are urging witnesses to come forward.

The state Justice Department's criminal investigation unit is helping in the investigation.

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